Nut-lock.



ANDREW V. BRYOE, OF ALLEGl-IENY, PENNSYLVANIA, ASSIGNOR OF NINE- TVENTlETl-IS TO GEORGE B. WIX, OF SAME PLACE.

NUTWLOCK..

SPECIFICATION forming part Of Letters Patent No. 652,530, dated June 26, 1900. Application filed September 19, 1899. Serial No. 730,970. (No model.)

To all whom it may concern.: v Be it known that I, ANDREW V. BRYCE, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Nut-Locks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciiication, in which-L io Figure l is a longitudinal sectional view showing my improved nut-lock, the parts being ina locked position. Fig. 2 is a like view, the parts being in an unlocked position. Fig. 3 is a cross-sectional view of Fig. l, the parts being in an unlocked position. Fig. et is a like view, the parts being Vin a locked position. Fig. 5 is a rear view of the lockingnut, showing the enlarged cavity. Fig. G is an end view of one of the sections of the nut, zo showing the mortise and tenon. Fig. 7 is a View of the face of the divided or sectional nut; and Fig. S is a like view, the nut being split instead of being formed in sections.

Like gures of reference indicate like parts z 5 wherever they occur.

My invention relates to an improvement in nut-locks; and it consists in a peculiar cornbination of two nuts having engaging camfaces, as hereinafter more fully described, and

3o set forth in the claims.

In the drawings, 2 represents the bolt, screw-threaded in the'usual manner. Fitting over the bolt is a threaded nut 7, preferably formed in two or more sections on longitudinal lines, or it maybe simply split longitudinally, as is shown in Fig. l8V. These sections may be held together bya split ring 8, which iits in a recess 9 in Jthe neck 10 of the nut. This spring-neck l0 ofthe nut is reduced in 4o its outer circumference to be inserted within the inner circumference of the extension e of the locking-nut 3. -The inner circumference of this extension e is provided with one or more cam-surfaces 5. The outer circumference of the neck of the nut 7 is also provided with cam-faces l1 to correspond with and be adapted to bind in the cam-faces 5 of the in ner circumference of the locking-nut 3.

The bore of the locking nut proper is 5o threaded to engage with the thread of the bolt. The neck of the nut 7 is preferably slotted, as at 13, to renderit flexible anidcom;w

pressible that it may be c( asedtfbind on the bolt 2 by this actio the cams 5 and l1.

Where the nut 7 is formed in two or more 55 sections, the meeting faces are provided with a tongue 14 and groove l5, the end of one of which is beveled. As the nut locks and the sections are caused to press against each other this bevel tends to throw the sections 6o of the nut askew and causes them to bind firmly on the screw-thread of the bolt.

As both the nut 7 and the locking-nut 3 are threaded, the nut may be locked at any point on the bolt 2 without the necessity of being 65 in contact with a backing. The operation is as follows: The parts of the nut 7 being assembled and held by the ring 8, the springneck lO is inserted in the cavity of the locking-nut 3, and both nuts are screwed down 7e together on the bolt 2 to the desired position. The locking-nut 3 is then turned independently of the nut 7 sufficiently to cause the cams 5 and ll to jam on each other and to bind the spring-neck on the bolt 2.

The advantages of my invention will be apparent to those skilled in the art.

Having thus described my invention, what I'claiin isl. AIn a nut-lock, the combination of a nut 8o having a spring-neck, a locking-nuthaving an extension with 'an enlarged cavity within which the spring-neck is adapted to entend, and a cam-face in the cavity of the extension of the locking-nut and on the neck of the nut; substantially as described.

2. In a nut-lock, the combination of a nut formed in sections having a spring-neck, the sections being provided with a tongue and groove, one of which is beveled, said neck 9o `being provided with a cam-face, and a locking-nut having anenlarged cavity within which the spring-neck is adapted to fit, said cavity being provided with a cam-face; substantially as described.

3. In a nut-lock, a nut made in-longitudinally-divided sections, each sect-ion threaded on the line of its bore, and having a springneck portion provided with a cam, and a locking-nut having a threaded outer portion 10c anti piovied with a cavi-ty having cam-faces faced. cavity arranged to coaet with thespringparallel Wifi-bythebore?substantiallyasde@z nee-k; substantially asdeseri-ioeci.`I 1o scribed. Initestimony whereofi have'lhereunto set 4, In a nut-look, t-he combination of a nut my hand. n 5 formed in separate longitudinally-divided see- ANDREW V. BRYCE.

tions f withl intertting projections -and -1'e. Witnesses:

eesses, eaeheection hvinga spring-'neekwith' y f H; C'ORWIN;

a, cam-face, anda looking-nut havinga earn-4 

